Rotational alignment method and apparatus for tubing conveyed perforating guns
US4523649A · kind A · utility
77Cited by
5References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 25, 1983 |
| Grant date | Jun 18, 1985 |
| Priority date | — |
| Expiry date | May 25, 2003 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/119
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and apparatus are provided for angularly aligning normally vertical rows of explosive charge containers mounted on a tubing conveyed perforating gun carrier so that none of the explosive charges is directed substantially vertically upwardly in the event that perforation is accomplished in a non-vertical section of the well casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.